Inventor · disambiguated record
David Hartfelder
Also filed as: HARTFELDER DAVID
1 granted patent·2 pending applications·7 citations·filing 2012–2018
29Inventor score
Top patents by PatentIndex Score
3 records- 0163US8857730B2Sump sprinkler control systemHARTFELDER DAVID·Filed 2012·Granted Oct 14, 2014·7 cites·21 claims
- 0235US2013200171A1Sump sprinkler control systemHARTFELDER DAVID·Filed 2013·Application pending·0 cites
- 0331US2018168119A1Building foundation drainage ground water supply and use systemM E C SYSTEMS·Filed 2018·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when David Hartfelder files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →